5. Prove that if x, y ER, then x + y ≤ x + y. Use the following cases: (i.) x, y ≥ 0, (ii.) x, y < 0, and, (iii.) x ≥ 0 and y < 0.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.3: Zeros Of Polynomials
Problem 32E
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5. Prove that if x, y ER, then x + y ≤ x + y. Use the following cases:
(i.) x,y > 0,
(ii.) x, y < 0, and,
(iii.) x ≥ 0 and y < 0.
S
Transcribed Image Text:5. Prove that if x, y ER, then x + y ≤ x + y. Use the following cases: (i.) x,y > 0, (ii.) x, y < 0, and, (iii.) x ≥ 0 and y < 0. S
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